Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite

Autores
Horst, María Fernanda; Quinzani, Lidia Maria; Failla, Marcelo Daniel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Polyethylene (PE) / clay nanocomposites were prepared by melt mixing using polyethylene grafted with maleic anhydride (PEg) as compatibilizer. Concentrations between 2 and 15 wt% of an organophilic montmorillonite (MMT) and concentration ratios of 1:1, 2:1 and 3:1 of PEg/MMT were employed. The materials were characterized using X-ray diffraction, scanning electron microscopy (SEM) and thermogravimetry. The SEM images show that the presence of PEg gives place to a large degree of exfoliation at all clay concentrations. For 5 wt% MMT, the best degree of exfoliation is obtained for a 2:1 ratio of PEg/MMT. This ratio also gives place to the largest increase of the elastic modulus, mainly at low frequencies, with respect to that of the corresponding matrix. As the clay concentration increases, for a 2:1 ratio of PEg/MMT, the dynamic moduli increases showing pseudo solid-like behavior at clay concentrations higher than 8 wt%. Moreover, the nanocomposites show rheological properties that are affected by annealing at 200°C signaling further exfoliation or improved platelet and tactoid distributions. The oxygen permeability of PE gradually decreases with clay concentration, reaching a maximum reduction of ~30% for 15 wt% MMT.
Fil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Materia
Nanocomposites
Polyethylene
Rheological Properties
Permeability
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24912
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/24912
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Rheological and barrier properties of nanocomposites of HDPE and exfoliated MontmorilloniteHorst, María FernandaQuinzani, Lidia MariaFailla, Marcelo DanielNanocompositesPolyethyleneRheological PropertiesPermeabilityhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Polyethylene (PE) / clay nanocomposites were prepared by melt mixing using polyethylene grafted with maleic anhydride (PEg) as compatibilizer. Concentrations between 2 and 15 wt% of an organophilic montmorillonite (MMT) and concentration ratios of 1:1, 2:1 and 3:1 of PEg/MMT were employed. The materials were characterized using X-ray diffraction, scanning electron microscopy (SEM) and thermogravimetry. The SEM images show that the presence of PEg gives place to a large degree of exfoliation at all clay concentrations. For 5 wt% MMT, the best degree of exfoliation is obtained for a 2:1 ratio of PEg/MMT. This ratio also gives place to the largest increase of the elastic modulus, mainly at low frequencies, with respect to that of the corresponding matrix. As the clay concentration increases, for a 2:1 ratio of PEg/MMT, the dynamic moduli increases showing pseudo solid-like behavior at clay concentrations higher than 8 wt%. Moreover, the nanocomposites show rheological properties that are affected by annealing at 200°C signaling further exfoliation or improved platelet and tactoid distributions. The oxygen permeability of PE gradually decreases with clay concentration, reaching a maximum reduction of ~30% for 15 wt% MMT.Fil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaSage Publications Ltd2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24912Horst, María Fernanda; Quinzani, Lidia Maria; Failla, Marcelo Daniel; Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite; Sage Publications Ltd; Journal Of Thermoplastic Composite Materials; 27; 1; 1-1-2014; 106-1250892-7057CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1177/0892705712443248info:eu-repo/semantics/altIdentifier/url/http://journals.sagepub.com/doi/10.1177/0892705712443248info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:10:55Zoai:ri.conicet.gov.ar:11336/24912instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:10:55.348CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
title Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
spellingShingle Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
Horst, María Fernanda
Nanocomposites
Polyethylene
Rheological Properties
Permeability
title_short Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
title_full Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
title_fullStr Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
title_full_unstemmed Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
title_sort Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
dc.creator.none.fl_str_mv Horst, María Fernanda
Quinzani, Lidia Maria
Failla, Marcelo Daniel
author Horst, María Fernanda
author_facet Horst, María Fernanda
Quinzani, Lidia Maria
Failla, Marcelo Daniel
author_role author
author2 Quinzani, Lidia Maria
Failla, Marcelo Daniel
author2_role author
author
dc.subject.none.fl_str_mv Nanocomposites
Polyethylene
Rheological Properties
Permeability
topic Nanocomposites
Polyethylene
Rheological Properties
Permeability
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Polyethylene (PE) / clay nanocomposites were prepared by melt mixing using polyethylene grafted with maleic anhydride (PEg) as compatibilizer. Concentrations between 2 and 15 wt% of an organophilic montmorillonite (MMT) and concentration ratios of 1:1, 2:1 and 3:1 of PEg/MMT were employed. The materials were characterized using X-ray diffraction, scanning electron microscopy (SEM) and thermogravimetry. The SEM images show that the presence of PEg gives place to a large degree of exfoliation at all clay concentrations. For 5 wt% MMT, the best degree of exfoliation is obtained for a 2:1 ratio of PEg/MMT. This ratio also gives place to the largest increase of the elastic modulus, mainly at low frequencies, with respect to that of the corresponding matrix. As the clay concentration increases, for a 2:1 ratio of PEg/MMT, the dynamic moduli increases showing pseudo solid-like behavior at clay concentrations higher than 8 wt%. Moreover, the nanocomposites show rheological properties that are affected by annealing at 200°C signaling further exfoliation or improved platelet and tactoid distributions. The oxygen permeability of PE gradually decreases with clay concentration, reaching a maximum reduction of ~30% for 15 wt% MMT.
Fil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
description Polyethylene (PE) / clay nanocomposites were prepared by melt mixing using polyethylene grafted with maleic anhydride (PEg) as compatibilizer. Concentrations between 2 and 15 wt% of an organophilic montmorillonite (MMT) and concentration ratios of 1:1, 2:1 and 3:1 of PEg/MMT were employed. The materials were characterized using X-ray diffraction, scanning electron microscopy (SEM) and thermogravimetry. The SEM images show that the presence of PEg gives place to a large degree of exfoliation at all clay concentrations. For 5 wt% MMT, the best degree of exfoliation is obtained for a 2:1 ratio of PEg/MMT. This ratio also gives place to the largest increase of the elastic modulus, mainly at low frequencies, with respect to that of the corresponding matrix. As the clay concentration increases, for a 2:1 ratio of PEg/MMT, the dynamic moduli increases showing pseudo solid-like behavior at clay concentrations higher than 8 wt%. Moreover, the nanocomposites show rheological properties that are affected by annealing at 200°C signaling further exfoliation or improved platelet and tactoid distributions. The oxygen permeability of PE gradually decreases with clay concentration, reaching a maximum reduction of ~30% for 15 wt% MMT.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24912
Horst, María Fernanda; Quinzani, Lidia Maria; Failla, Marcelo Daniel; Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite; Sage Publications Ltd; Journal Of Thermoplastic Composite Materials; 27; 1; 1-1-2014; 106-125
0892-7057
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24912
identifier_str_mv Horst, María Fernanda; Quinzani, Lidia Maria; Failla, Marcelo Daniel; Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite; Sage Publications Ltd; Journal Of Thermoplastic Composite Materials; 27; 1; 1-1-2014; 106-125
0892-7057
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1177/0892705712443248
info:eu-repo/semantics/altIdentifier/url/http://journals.sagepub.com/doi/10.1177/0892705712443248
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sage Publications Ltd
publisher.none.fl_str_mv Sage Publications Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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